Abstract: A throttle body includes a resin body (3) defining a bore (7) through which intake air flows, and a valve body (60) having a shaft part (20) rotatably supported by the body (3) via a pair of bearing members (24) and a resin valve part (4) for opening and closing the bore (7). End faces (67) of the valve part (4) slidably contacting with end faces (69) of the bearing members (24). The end faces (67) and (69) of at least one of the valve part (4) and the bearing members (24) slidably contacting with each other are formed to have a radius (69r) equal to or larger than a radius (68r) of paths of rotation (68) of radially outer ends (67a) of the end faces (67) of the valve part (4).

Abstract: A movable core 31 can move with respect to a fixed core 21. A bobbin 51 on which a coil 52 is wound is disposed around the fixed core 21. A body 22 is disposed around the bobbin 51. A connector 24 is formed of resin and disposed around the fixed core 21. A connecting wire 25 is connected to the coil 52 and embedded in the connector 24. A seal 27 is disposed in a region 26 that is surrounded by the fixed core 21, the connector 24 and the body 22, with the connecting wire 25 running through the seal 27.